News of Fields' joining DWTS comes just a few weeks after ABC announced that Julianne Hough will not be returning as a judge. "I will miss being on the panel for Season 22, but have a lot of exciting stuff coming that I look forward to sharing," Hough told ET in a statement. "The pro dancers, producers and crew at DWTS will always be my family."

Relive the season 21 finale:

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EXCLUSIVE: 'Facts of Life' star Kim Fields will compete on 'Dancing With the Stars' season 22, sources confirm

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LOS ANGELES, CA - NOVEMBER 24: Nick Carter (L) and Sharna Burgess attend ABC's 'Dancing With The Stars' Live Finale at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage)

LOS ANGELES, CA - NOVEMBER 24: Alek Skarlatos (L) and Lindsay Arnold attend ABC's 'Dancing With The Stars' Live Finale at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage)

LOS ANGELES, CA - NOVEMBER 24: Bindi Irwin (L) and Derek Hough attend ABC's 'Dancing With The Stars' Live Finale at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage)

LOS ANGELES, CA - NOVEMBER 24: Alek Skarlatos (L) and Lindsay Arnold attend ABC's 'Dancing With The Stars' Live Finale at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Amanda Edwards/WireImage)

LOS ANGELES, CA - NOVEMBER 24: A general view of atmosphere at ABC's 'Dancing With The Stars' Season Finale hosted by The Grove at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Angela Weiss/Getty Images for Caruso Affiliated)

LOS ANGELES, CA - NOVEMBER 24: A general view of atmosphere at ABC's 'Dancing With The Stars' Season Finale hosted by The Grove at The Grove on November 24, 2015 in Los Angeles, California. (Photo by Angela Weiss/Getty Images for Caruso Affiliated)

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The Grease: Live star's brother, Derek Hough, is expected to return next season as a pro dancer, and tells ET that it was time for his younger sister to leave the judges' table. "I think she did three great seasons, and it's time for her to go," he said. "She's got great things on the horizon, and she's doing great things. Len [Goodman]'s coming back, and so, you know, I think four judges feels a little redundant anyways, so I think it's the right thing to do."